Explosive-engine.



J: A. CHARTER.

EXPLOSIVE ENGINE.

APPLICATION FILED NOV.15, 1913,

1,106,782, Patented Aug. 11, 191 i 2 sums-suns? 1 J. A. CHARTER.

EXPLOSIVE ENGINE,

APPLICATION FILED NOV.15, 1913.

1,106,782, Patented Aug. 11,1914.

2 SHBETB-SHEBT 2.

JAMES A. CHARTER, CHICAGO, ILLINOIS.

EXPLOSIVE-ENGINE.

Specification of Letters latent.

Patented Au 11, 19i4.

Application filed November 15, 1913. Serial No. 801,111..

To all la/(omit may concern:

Be it known that I, J.\ 1-lS-i CHARTER, a citizen of the United States, residing at Chicago, in the county oftlook and State of Illinois. have invented a certain new and useful. Improvement in lfI-xplosive-llngines, oi, \\-'-hic i i the following is a specification.

This invention relates to that class of explosive engines in which a rotary sleeve or cylindricalralve is used in a cylindrical recessforined between it inner and an outer iisscinbled and inexpensive to build, which is efficient in operation and not readily liable to get outiof order.

, The invention is an in'iproved form of the device shown, descril'ied and claimed in my prior patent application Serial Number" 713,766, filed August 7, 119 12. I

. The invention consists ni a structure-in which the inner of s'aid two cylinders is dctachably supported at both ends against sidewise.movement thereby doing away.

with unnecessary frictionand strain upon the vii'lve'; in the use of mean at one end of the innercylinder for supportingit upon the outer cylinder and in so supporting the other endof said cylinder as to allow for its lengthwise expansion with reference to the The invention further consists iusiinultnneously guiding the nner end of the inncr cylinder from the outer cylinder prefcarrying the gears.

"lihi: invention further consists in providing ihe geariug'upon the aforesaid portion otthe sleeve with parallel hearings on op posite sides of the gear so as to cause the hereafter pointed out some to travel very steadily and with-as little friction as possible. I l

The invention further consists in details I in the specification and claims; v

. Referring. to the drawings in which similar throughout the several views-Iiigure 1; is a vertical sectional detail view through anenw gine cylinderequipped with this invention in its preferred-form, taken on'the line 11, Fig. Fig. is a side view of a four cylinder engine equipped with thedevice of this invention, the case'heil'ig partially-broken away so as to show the interior of two different cylinders; Fig. 3' is a 'plan' view taken on the irregularline 3-3 of Fig. 2,-

showing the arrangen'ient of the ports and passages for fuel material leading; to-the eylii'iders ind for the exhaust therefrom.

The devicp, c'ourse, has to-be supported and in the particular case here illustrated numerals indicate the same. parts the crankcasemisused for the purpose,

the sarne'bein oilpan- 11' Rising fro tlie base 0r crank ease 10; and

secured thereto in a iiy suitable manner is an outer cylinder 12 provided with :r water space-14 i'n-the ordinary manner.

through the upper end 24 of the base 1O, the

inner end 26 of said inner cylinder 22 fitclosed at -it's bottom-with the" conventional construction. I 13 l in f the upper end of this outer cylinder 12 is a.

Rigidly secured to this ting into the ring so loosely that there -is' no question at all about the inner cylinder being able to expand freely lengthwise through the upper plate'24 of the base 10,-

thus taking care of 'al'l'e'xpansion of the inner cylinder when under' tions. 7

It will be noticed that a collar 30 preferably ofhardened steel is provided just above the. upper plate 24 preferably but-notnecessarily let into it as shownand 'that said eolhir has a hearing at 3 l, upon the outer cylinder 12. This collar 30 is'preferably quite accurately made so as'to maintain the innercylinder 22 in centered position with reiterence to theoUtereylinder while allowingfqr the expansion of the inner cylinder above referred to. The upper end of the inner cylinder 22 also closely fits and contacts the outer cylinder at 33 for a short distance, thereby insuring the accurate centering of the inner cylinder with reference to the outer cylinder at this point. The inner cylinder is, vexcet at the points noted, of suiticientl smal er diameter than. the outer cylin er to provide 'an annular recess-between the inner and outer cylinders for the insertion and rotationof the cylindrical sleeve valve 32. This valve is, as shown, made in two parts 32 and 32 joined together by a clutch joint 34 so s to prevent rotation of either part of the valve independent of the other while permitting the removal of the upper portion 32 of the valve from the portion 32 whenever the operator has first taken hold of the plate 16 and lifted it and consequently the inner cylinder 22 upward as shown in Fig. 1 leaving the upper valve member 3'2 exposed so that it may be removed.

lhe lower valve member 32 carries a toothed section 36 which has hearing at its bottom in the ring 30 heretofore described and at its top another ring 38 of hardened steel. This rin 38 is provided with a flange iOwhich close y fits the projecting end 42 of the outer cylinder so that the lower valve member 32 has an accurately adjusted bearing [1)011 these two rings 30 and 38 and,

I there ore, in practice does not depend upon the inner cylinder for guidance or support, there being in practice a film of oil between the inner cylinder 22 and the lower valve member 32. This lower valve member 32 is driven by a worm 44 on a shaft 46, the teeth of the worm meshing with the teeth 36 on the circumference of the valve member 32. -'This worm is carried inside an enlarged portion of the case or outer cylinder ,as shown and as is fully described and claimed in my said )rior application. The shaft 46 is suitably oiirnaled by means not 'shown and carries a sprocket wheel 48 over which travels a sprocket chain 50 which in turn travels over a. sprocket wheel 52 on the main shaft 54 of the engine. This shaft 54 in the interior of the case is a crank shaft having a plurality of crank pins 56 of ordinary construction one for each cylinder of the engine and on each crank pin is a. connccting rod 58 suitably attached to a piston 60 inside the inner cylinder In order to make the device an operative one, each of the cylinders of the engine is provided with suitable intake ports 62 and exhaust ports 64 forming no part of this invention. er forms of minimum'friction or fricti= less bearings may be substituted. at the points of contact between the valve member 32 and rings 30 and 38 without departing from this invention.

It will be noticed that the ring 30 is o larger diameter than the ring 38 so that whenever the base 10 is removed from the parts above it, both rings and the lower valve member 32" may all be removed through the lower end of the outer cylinder. It will also be noticed that the inner cylin der is suspended and carried by the flat head 16 from the outer cylinder as in my said prior application and that the head and cylinder may he removed to ether without disturbing the other parts, t ereby making the upper portion of the sleeve removable,

I claim:

1. In a device of the class described, a base, an outer cylinder on said base, an inner cylinder smaller than the outer cylinder removably insertible through the outer cylinder while it is in place on the bnse and into a suitable opening in the base" with whose wall it has sliding engagement to allow for expansion and contraction of said inner cylinder while supporting the inner cylinder against lateral movement.

2. In adevice of the class described, a. base, an outer cylinder, means for detachably securing the outer cylinder to the base, an inner cylinder smaller than the outer cylinder removably insertible throu h the outer cylinder while it is in place on t e base and into a suitable opening in the base with whose wall it has sliding engagementto allow for expansion and contraction of said inner cylinder while supporting said inner cylinder against lateral movement.

3. In a device of the class described, a base, an outer cylinder on said base, an inner cylinder smaller than the outer cylinder removably insertible throu h the outer cylinder while it is in place on t e base and into a suitable opening in the base with whose Wall it'has sliding engagement to allow for expansion and contraction of said inner cylinder whilesupporting the inner cylinder against lateral movement, and

means for detachably securing the outer ends of the two cylinders together, said securing means being so constructed as to rigidly space said cylinders apart at this point to permit the proper operation of ii cylindrical valve placed in a space formed. between them.

4. In a device of the class described, a base, an outer cylinder, means for detachably securing the outer cylinder to the base, an inner cylinder smaller than the outer cylinder removably insertible through the outer cylinder while 'it is in place on the base and into a suitable opening in the base with whose wall ithas sliding engagement to allow for expansion and contraction of said inner cylinder while supporting said inner cylinder against lateral movement, and means for detachably securing the outer ends of the two cylinders together, said securing means being so constructed as to rigidly space said cylinders apart at this point to permit the proper operation of a cylindrical valve placed in a space formed between them.

5. In a device of the class described, a base, two concentric cylinders carried by the base, the inner of said cylinders carrying at its outer end a flanged head at right angles to its axis fitting over and detachably secured to the outer cylinder and having its inner end extending slidably through an opening in the base to allow for the expansion and contraction of the inner cylinder, a valve member rotatable between said cylinders when in the position named and means for rotating the valve.

6. In a device of the class described, two concentric cylinders spaced apart to receive a valve member between them, the bore of he outer cylinder being such that both the valve member and inner cylinder may be freely withdrawn from one end of the outer cylinder, a shoulder at one end "of the inner cylinder spacing it from the oiiter cylinder to maintain said valve space, a detachable spacing member insertible between the opposite ends-of the cylinders for the Same purpose, and means for securing the part to assembled position.

7. A device of the class described, includ; ing two concentric cylinders of different sizes to form a space between them, a valve member in the space between them and a separate ring space member insertible be tween the adjacent walls of the two cylinders spacing them apart to maintain the valve space constant.

8. A device of the class described including an outer cylinder, an inner cylinder removably insertible inside the outer cylinder smaller than the outer cylinder so as to provide an annular space between them for the insertion of a valve member, means spacing the inner ends of the two cylinders, a member projecting radially from the outer end of the inner cylinder into contact with the interior circumference of the outer cylinder to accurately center the inner cylinder with reference to the outer cylinder at that point, and means for detachably securin the parts in assembled position, the result eing that the inner cylinder may first be removed leaving the valve member freely removable fronrthe. outer cylinder.

9. A device of the class described, including an outer cylinder, an inner cylinder smaller than the outer cylinder so as to form an annular space between them, inserted through said outer cylinder, a member spacing the inner ends of the two 0 linders, a cylindrical valve member rotatab e in the annular space formed between the cylinders, said valve member being made in two parts detachably coupled together, one of said portions of the valve member being provided with driving means, and means operatin upon said driving means for driving nsai valve member, the whole so arranged that the portion of the valve member which does not contain the driving means may be removed without disturbing the other portion.

In witness whereof, I have hereunto subscribed my name in the presence of two witnesses.

JAMES A. CHARTER.

Witnesses DWIGHT B. CHEEVER, M. S. Rosnnzwnm. 

